Answer: 2704 J
Given :
mass = 200 g
velocity = 5.2 m/s
kinetic energy = 1/2 mv^2
= 1/2 * 200 * (5.2)^2
100 * 27.04
2704 J
Answer:
1.) Liquid
2.) Low
3.) Molecular
4.) Surface tension
5.) Solvent
Explanation:
Water is important to living things because it remains in the LIQUID state over a wide range of temperatures. Water in lakes and oceans does
not experience large temperature changes because liquid water has a
LOW specific heat, so it must absorb or release a lot of energy as its temperature changes. The MOLECULAR forces between water
molecules cause water to form round droplets and cause water's high SURFACE TENSION. Water is also an important SOLVENT because it can
dissolve many different substances.
The moons gravity controls the tides of the Earth, and depending on position, make the tides rise and fall. If the moon did not exist, we would not have tides.
Answer:
David will drive a total of 7 hours and 15 minutes to see his grandma.
Explanation:
To solve this problem, it is easiest to set up a dimensional analysis problem that allows us to multiply and cancel units. This is shown below.
435 miles * 1 hour/60 miles
Since miles appears both in the numerator and denominator, we know that this unit will cancel, so our answer will be in units of hours.
435/60 = 7.25 hours
This means that David's trip will take 7.25 hours. However, the question asks for the time David will travel in hours and minutes, so we must convert this answer into those units.
We can keep the number 7 because it represents the number of full hours David will drive, but we must convert 0.25 hours into minutes. Since there are 60 minutes in 1 hour, we can multiply 0.25 * 60 to find out how many minutes David will drive.
0.25 * 60 = 15
Therefore, David will drive a total of 7 hours and 15 minutes to see his grandma.
Hope this helps!